That's neither "fairly cheap", nor is going to sound better than buying a microphone at the same price and using free EQ and compressor plugins, nor is adding e

That's neither "fairly cheap", nor is going to sound better than buying a microphone at the same price and using free EQ and compressor plugins, nor is adding extra "warmth" the main benefit from using a compressor. (A compressor can help with making the the quiet and the loud parts more equal in volume, at the cost of amplifying background noise.)